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Finding the Fourth Proportional to 855.44, 1,277.23 and 700.98

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Solution

The fourth proportional to 855.44, 1,277.23 and 700.98 is: 1,046.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    855.44 : 1,277.23 = 700.98 : x
  2. Step 2: Convert to fraction form
    855.44/1,277.23 = 700.98/x
  3. Step 3: Cross multiply
    855.44x = 1,277.23 × 700.98
  4. Step 4: Simplify right side
    855.44x = 895,312.04
  5. Step 5: Solve for x
    x = 895,312.04/855.44
  6. Step 6: Final answer
    x = 1,046.61

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.